.container {
  width: 100vw;
  height: 100vh;
  background: #369;
  display: flex;
  justify-content: center;
  align-items: center;
  .content {
    width: 500px;
    height: 300px;
    border: 1px solid #ccc;
    h2{
      text-align: center;
      margin:20px 0;
    }
    button {
      margin-left: 20px;
    }
  }
}